The first seven Xbox 360 Games on Demand titles are now available for download – revealing pricing and download size. These titles are currently available only for Xbox Live members with access to the Preview Program. The rest of the titles will be available by August 11th, when the new dashboard update and Games on Demand will become available to all.

• Call of Duty 2 – £19.99, 5.27 GB
• Elder Scrolls IV: Oblivion – £19.99, 5.87 GB
• Need for Speed Carbon – £19.99, 5.03 GB
• LEGO Star Wars: The Complete Saga – £19.99, 5.71 GB
• Mass Effect – £19.99, 6.83 GB
• Viva Piñata – £19.99, 4.89 GB
• Assassin’s Creed – £19.99, 6.56 GB

Source